Half frame mounting for eyeglasses



March 21, 1939. L. vlToLo' 2,151,668

HALF FRAME MOUNTING FOR EYEGLASSES Filed June 4, 1958 AM AT RNEY far . Patented Mar. 21, 1939 2,151,668 mum FRAME Momma ro'n smemssas Louis Vitolo, New York, N. Y., assignor to Gentury Oxford Manufacturing Corp., Brooklyn,

Application June 4, ms, Serial No. 211,853

1 Claim.

In the appended drawing forming part of this application, Figure 1 is a section on line l-l, Figure 2.

Figure 2 is a top plan of the eyeglass.

Figure 3 is a fragmentary section on line 3-3, a

Figure 1.

Figure 4 is a fragmentary section on line 4-4, Figure 2, and

Figure 5 is a fragmentary elevation of the end of the frame wherein the tongue is punched out for engaging the lens. I Y i The half-frame-mounting has two channelled members Ill shaped to conform to the portion of the lens it is to receive. In view of its channelled cross-section, theframe section is substantially non-flexible in either plane. As shown, the channelled member l0 fits the upper arcuated edge of the lens, and in conformity with the lens has downward extending-channelled sections ll, preferably having slightly larger sides than the frame has in its central part. 7

These sections ll of thechannelled members It] each are provided in the bottom of the channel with a punched-out tongue or lug II, the anchored part of which tongue in the corresponding frame section II is nearer to the end of said section. Therefore, the free end of the lug or tongue is remote from the end of the corresponding section H.

For each of said tongues l2 of the channelled members Hi, the lens fitting the channelled member has spaced V-shaped corresponding notches 13 into which the tongues 12 may be bent to lock the lens in the channelled member In. notches l3 are so formed that in'normal position of the lenses the horizontal line passing through the apex of the notch forms an angle of about 15 degrees with the upper side of the notch, and about 30 to 35 degrees with the lower side of the notch (see Figure 4) so that the total angle of the notch is. between 45 and 50 degrees. Preferably, oneiof the tongues I! of a channelled member l0 These is pre-bent to engage properly the notch of the lens. The other tongue I! of the same channelled member i0, preferably the one located nearer to the nose-piece, is only punched out to be bent when the lens is inserted into the chan- 5 nelled member l0.

In inserting a lens into the channelled member If), one of the notches is made to engage with the pre-bent tongue, so that it could then be swung into the frame until it is fully engaged therein. 10 The other tongue I! can then be bent into the proximate notch, thereby locking the lens in the channelled member ID. 1

The two channelled members Iii are united by a nose bridge piece l5, preferably securing said 16 channelled members It on the sides of the channel which are disposed toward the eyes when the glasses are worn. Similarly, the bow supporting members iii are secured to the remote 'ends of the channelled members i0, also on the sides of the 20 channels disposed towards the eyes of the wearer.

In view of the relative rigidity of the frame iii, the lens engaged by the tongues I2 is firmly locked in the frame and the engagement'of the notches IS with the tongues resist any downward move- 25 ment of the lens, for the tongues being rigid at a point below the apex of the notch cannot move down with the lens, the frame being unflexible as previously remarked.

To permit removal of a. lens from a \chan- 3o nelled member Iii, it is necessary to disengage one ;of the tongues l2 from the corresponding notch l3. For that purpose, I provide an opening M in the side of a channel in proximity of said tongue, as best shown in Figures 1 and 4, through 5 which a sharp pointed instrument may be inserted to engage the tongue in the notch and force it out therefrom.

In view of the type of materialused'for the frames, this operation with the tongue could be 0 performed a large number of times without danget of breaking the tongue ofi, thus providing means for replacing lenses or changing frames, as the case may be.

I claim:

In a-half-frame mounting for eyeglasses including a pair-of lens each presenting an arcui ated edge at the top with spaced venotches in said edge, the upper side of said V-notches forming an angle of about l5-degrees with the hori- 5o.

zontal passing through the apex of the V'in the normal position of the glasses, a channelled mem-,' her for each lens fitting the arcuated edge and enclosing the notches, a nose-piece bridge securing said two channelled members by engaging the side of the channels adapted to be disposed toward the eyeside of the lenses, bow carrying members at the end of the channelled members remote from the nose-piece and also secured to the side 01 the channel to which the nose-piece is secured. tongues sheared from the bottom of each of the channelled members and adapted to be bent to tongue for admitting a tool to engage the tongue. 5

LOUIS VITOLO. 

